mirror of https://github.com/pissnet/pissircd.git
154 lines
4.4 KiB
C
154 lines
4.4 KiB
C
/*
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* IRC - Internet Relay Chat, src/modules/squit.c
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* (C) 2004 The UnrealIRCd Team
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*
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* See file AUTHORS in IRC package for additional names of
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* the programmers.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 1, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "unrealircd.h"
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CMD_FUNC(cmd_squit);
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#define MSG_SQUIT "SQUIT"
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ModuleHeader MOD_HEADER
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= {
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"squit",
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"5.0",
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"command /squit",
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"UnrealIRCd Team",
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"unrealircd-6",
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};
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MOD_INIT()
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{
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CommandAdd(modinfo->handle, MSG_SQUIT, cmd_squit, 2, CMD_USER|CMD_SERVER);
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MARK_AS_OFFICIAL_MODULE(modinfo);
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return MOD_SUCCESS;
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}
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MOD_LOAD()
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{
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return MOD_SUCCESS;
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}
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MOD_UNLOAD()
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{
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return MOD_SUCCESS;
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}
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/*
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** cmd_squit
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** parv[1] = server name
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** parv[parc-1] = comment
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*/
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CMD_FUNC(cmd_squit)
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{
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const char *server;
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Client *target;
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const char *comment = (parc > 2 && parv[parc - 1]) ? parv[parc - 1] : client->name;
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// FIXME: this function is way too confusing, and full of old shit?
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if (!ValidatePermissionsForPath("route:local",client,NULL,NULL,NULL))
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{
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sendnumeric(client, ERR_NOPRIVILEGES);
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return;
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}
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if ((parc < 2) || BadPtr(parv[1]))
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{
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sendnumeric(client, ERR_NEEDMOREPARAMS, "SQUIT");
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return;
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}
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server = parv[1];
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target = find_server_quick(server);
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if (target && IsMe(target))
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{
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target = client->direction;
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server = client->direction->local->sockhost;
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}
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/*
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** SQUIT semantics is tricky, be careful...
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**
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** The old (irc2.2PL1 and earlier) code just cleans away the
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** server client from the links (because it is never true
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** "client->direction == target".
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**
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** This logic here works the same way until "SQUIT host" hits
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** the server having the target "host" as local link. Then it
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** will do a real cleanup spewing SQUIT's and QUIT's to all
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** directions, also to the link from which the orinal SQUIT
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** came, generating one unnecessary "SQUIT host" back to that
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** link.
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**
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** One may think that this could be implemented like
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** "hunt_server" (e.g. just pass on "SQUIT" without doing
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** nothing until the server having the link as local is
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** reached). Unfortunately this wouldn't work in the real life,
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** because either target may be unreachable or may not comply
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** with the request. In either case it would leave target in
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** links--no command to clear it away. So, it's better just
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** clean out while going forward, just to be sure.
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**
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** ...of course, even better cleanout would be to QUIT/SQUIT
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** dependant users/servers already on the way out, but
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** currently there is not enough information about remote
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** clients to do this... --msa
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*/
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if (!target)
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{
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sendnumeric(client, ERR_NOSUCHSERVER, server);
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return;
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}
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if (MyUser(client) && ((!ValidatePermissionsForPath("route:global",client,NULL,NULL,NULL) && !MyConnect(target)) ||
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(!ValidatePermissionsForPath("route:local",client,NULL,NULL,NULL) && MyConnect(target))))
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{
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sendnumeric(client, ERR_NOPRIVILEGES);
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return;
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}
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/*
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** Notify all opers, if my local link is remotely squitted
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*/
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if (MyConnect(target) && !MyUser(client))
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{
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unreal_log(ULOG_INFO, "link", "SQUIT", client,
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"SQUIT: Forced server disconnect of $target by $client ($reason)",
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log_data_client("target", target),
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log_data_string("reason", comment));
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}
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else if (MyConnect(target))
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{
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if (target->user)
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{
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sendnotice(client, "ERROR: You're connected to %s, we cannot SQUIT ourselves",
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me.name);
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return;
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}
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unreal_log(ULOG_INFO, "link", "SQUIT", client,
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"SQUIT: Forced server disconnect of $target by $client ($reason)",
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log_data_client("target", target),
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log_data_string("reason", comment));
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}
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exit_client_ex(target, client->direction, recv_mtags, comment);
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}
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